Ah, I see the problem now. I'm viewing this pixelart on another computer, and seeing it with a different screen, which makes the colours appear a little different. On my other computer, it looked like some parts had a light source on the opposite side. The reason, I think, is because you're operating with different colours with nearly identical brightness. For example, the coat has three colours. The main colour has a luminosity value of 102, and its shadow (dark red) has a value of 102 while the "bright parts" (dark blue) have 108. So the '"bright" parts of the coat are actually darker than the red shadows.

I know you prefer to have little contrast in your pixelart, but I think this piece would definitely look better with more contrast to enhance the shading.

Actually, I'm a chick. ^_~  Four of the colors are from the eye glow only, plus the transparency around the edges; the majority of the piece uses only ten colors.  And looking back I realize that there are another couple that are only on the face.

Ah, my lack of any sort of training is showing! >u<  I'll try to make some adjustments tonight based on what you've said.  Thank you for the help! <3

1. I actually haven't given the hair a shadow from the hat thanks for reminding me. ^_^'  What you're seeing, I think, is the lip on the brim of the hat that looked to me like it would be in shadow.  As for the coat shading; i see what you mean on most of it, but your comment about it being darkest in the middle is kind of confusing me...  Are you maybe seeing the shadow that's being cast on the shirt by the coat?

2.  My first time doing fur, highly experimental and all that.  I'll try to correct what you've pointed out. ^_^

3.  Um, how? o_o  The way I've shaded it, it should look like the light is coming from a 45 degree angle to the left (which is what the face is supposed to be).

 Wow, dude. Way too many colours.

Hmm. It seems to be a personal style of yours to use similar colours with little contrast. Even so, you seem to have gone even further with this piece than usual.

I do like the design and I think the dithering works very well. However, the light source brings a few problems, as far as I can tell.
1) The way the light hits his face, leaving a strong shadow underneath his hat, suggests a strong light source high in front, which is not reflected in his jacket/ coat. The shading on his coat is a bit strange. The arms suggest a light source to the right, yet his torso is darkest in the middle.
2) The way the light hits his fur is not consistent with the way it hits his face. By the look of his fur, the light seems to be coming from a 90 degree angle to the left. And even then, it still looks rather flat because of the way it's shaded.
3) The hat seems to suggest a lightsource nearly 90 degrees to the right.

These are my humble observations. Hope it helps.